Novel roll-on and roll-off method for large-diameter single pile foundation

The invention discloses a novel large-diameter single pile foundation roll-on and roll-off method which comprises the following steps: obtaining the size of a single pile foundation needing roll-on and roll-off, and selecting the specification of an SPMT self-propelled module vehicle according to the size; planning a transportation road according to the selected SPMT self-propelled module vehicle and the single pile foundation; the auxiliary tool is used for bearing the single pile foundation; an SPMT self-propelled module car is used for jacking the auxiliary tool bearing the single pile foundation; the roll-on-roll-off ship is driven into a wharf, and the height of a deck of the roll-on-roll-off ship is adjusted to the roll-on-roll-off height through a ballast water adjusting system according to the water level of the ship loading wharf And the SPMT self-propelled module vehicle is controlled to roll on the roll-on-roll-off ship, the auxiliary tool bearing the single pile foundation is transferred to the ro